US4609976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination flashlight and warning light
Assignee: PATENT-TEUHAND-GESELLSCHAFT fur ELEKTRISCHE GLUHLAMPEN MBH HELLABRUNNER STRASSE 1 A OF GERMANY LLC
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Filing: 1985-03-29
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Granted: 1986-09-02
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Expires: 2005-03-29
Abstract
Abstract To provide for maximum light intensity in a selected mode of operation--th or flashlight mode or warning flasher mode, an elongated tubular housing has a body portion (2) and a head portion (3), the two portions being connected together by a hollow tube (17) secured preferably to the head portion (3) and slideable within the body portion. A reflector system (5) is secured to the head portion, and the halogen incandescent lamp seated on the body portion. For flashlight operation, the reflector system is fitted over the halogen incandescent lamp, and light from the lamp is directed axially outwardly of the flash lamp; for blinker operation, the entire head portion is pulled upwardly, along with the reflector for a distance, such that the reflector will clear the halogen incandescent lamp (16), thus providing for 360° light radiation--with respect to the axis of the lamp--and essentially directing all light from the halogen incandescent lamp for blinder or warning purposes. The tubular element (17) preferably is ribbed, and colored with a warning color, such as amber or red.
Inventors
- 👤 Udo Geissler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:38
CPC Classifications
F; F21; F21V; F21V14/00; F21V14/04; F21V14/045; F21V11/00; F21V11/08; F21V14/06; F21V14/065; F21V14/08; F21V14/085
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
282 words
Combination flashlight-warning light (1) having an elongated tubular housing including a cylindrical body portion (2) and a head portion (3) which is, at least in part, cylindrical; an optical system (5, 8, 10) including a reflector (5) located within the housing; a halogen incandescent lamp (16) located at an end zone of the body portion (2) facing the head portion (3), the body portion (2) defining a battery chamber (13) therein; means (17) axially slideably connecting the head portion (3) and the body portion (2) to provide for axially slideable movement of the head portion with respect to the body portion , wherein said slideable connection means (17) comprises a hollow cylindrical tube (17) telescopically received within the cylindrical body portion (2) and the at least in part cylindrical head portion (3), said hollow cylindrical tube surrounding at least the halogen incandescent lamp, regardless of the sliding position of the hollow cylindrical tube, and wherein the portion (18) of the hollow cylindrical tube surrounding the halogen incandescent lamp (16) is transparent, said hollow cylindrical tube forming a connection element for said body portion (2) and said head portion (3) while permitting relative movement thereof; and wherein, the reflector (5) is secured to the head portion (3) and the slideable connection means (17) has a slide distance large enough to remove the reflector secured to the head portion from the bulb of the halogen incandescent lamp and expose at least a filament of the halogen incandescent lamp (16) to a free space between the body portion (2) and the head portion (3) to provide for 360° light radiation--with respect to a longitudinal axis of the elongated tubular housing-from the halogen incandescent lamp (16).
Claim 2
Dependent Claim
282 words
Combination flashlight-warning light (1) having an elongated tubular housing including a cylindrical body portion (2) and a head portion (3) which is, at least in part, cylindrical; an optical system (5, 8, 10) including a reflector (5) located within the housing; a halogen incandescent lamp (16) located at an end zone of the body portion (2) facing the head portion (3), the body portion (2) defining a battery chamber (13) therein; means (17) axially slideably connecting the head portion (3) and the body portion (2) to provide for axially slideable movement of the head portion with respect to the body portion , wherein said slideable connection means (17) comprises a hollow cylindrical tube (17) telescopically received within the cylindrical body portion (2) and the at least in part cylindrical head portion (3), said hollow cylindrical tube surrounding at least the halogen incandescent lamp, regardless of the sliding position of the hollow cylindrical tube, and wherein the portion (18) of the hollow cylindrical tube surrounding the halogen incandescent lamp (16) is transparent, said hollow cylindrical tube forming a connection element for said body portion (2) and said head portion (3) while permitting relative movement thereof; and wherein, the reflector (5) is secured to the head portion (3) and the slideable connection means (17) has a slide distance large enough to remove the reflector secured to the head portion from the bulb of the halogen incandescent lamp and expose at least a filament of the halogen incandescent lamp (16) to a free space between the body portion (2) and the head portion (3) to provide for 360° light radiation--with respect to a longitudinal axis of the elongated tubular housing-from the halogen incandescent lamp (16).
Claim 3
Dependent Claim
33 words
Combination light according to claim 1, wherein said hollow cylindrical tube (17) is slideable within one (2) of said portions and secured to the other (3) of said portions of the tubular housing
Claim 4
Dependent Claim
20 words
Combination light according to claim 2, wherein the hollow cylindrical tube (17) is securely connected to the head portion (3).
Claim 5
Dependent Claim
60 words
Combination light according to claim 1, wherein the body portion (2) and the head portion (3) comprise hollow cylindrical elements having identical inner diameters; and the hollow cylindrical tube (17) has an outer diameter fitting closely within the inner diameter of said body portion and head portion, said hollow cylindrical tube forming a slide guide for said axial sliding connection.
Claim 6
Dependent Claim
18 words
Combination light according to claim 4, wherein said hollow cylindrical tube is formed with a light-diffusing surface texture.
Claim 7
Dependent Claim
15 words
Combination light according to claim 5, wherein said light-diffusing surface texture comprises ribbing or facetting.
Claim 8
Dependent Claim
56 words
Combination light according to claim 3, wherein said hollow cylindrical tube has a projecting end extensions from said fixed connection with the head portion (3), into the body portion (2), which is at least twice the sliding distance of said tube to provide for longitudinal guidance of the head portion with respect to the body portion.
Claim 9
Dependent Claim
100 words
Combination light according to claim 1, further including a lamp holder (11,12) securing the halogen incandescent lamp (16) to the body portion (2); and wherein the side of the lamp holder facing the bulb of the halogen incandescent lamp (16), as well as the side of the reflector (6), remote from the halogen incandescent lamp, when the halogen incandescent lamp is received within the reflector, have a reflective surface, to provide for maximum light utilization and transmission in said 360° radius upon sliding said slideable connection means for the slide distance to remove the halogen incandescent lamp from the reflector.
Claim 10
Dependent Claim
20 words
Combination light according to claim 6 wherein the light diffusing surface is formed at the inner surface of said tube.
Claim 11
Dependent Claim
45 words
Combination light according to claim 1 wherein the tubular housing includes an end or bottom cover (14) remote from the optical system; and a ring magnet (15) is provided, recessed into the bottom cover to permit attachment of said light combination to a ferromagnetic carrier.
Claim 12
Dependent Claim
121 words
Combination light according to claim 1 wherein the reflector (5) comprises a combination element having a first reflector section (6) formed by an elliptical reflector portion (6) defining a theoretical ellipse, and a second reflector section formed by a part spherical reflector portion (7), the wider opening of which faces the elliptical reflector portion (6) and located downstream--in a direction of the halogen incandescent lamp (16)--adjacent the elliptical reflector portion, said reflector being coupled to the hollow cylindrical tube (7) and movable therewith to change the relative position of the reflector with respect to the halogen incandescent lamp; and, wherein a lamp holder (11, 12) is provided, securing the halogen incandescent lamp (16) to the body portion (2) of the housing.
Claim 13
Dependent Claim
235 words
Combination flashlight-warning light (1) having an elongated tubular housing including a hollow cylindrical body portion (2) and a hollow cylindrical head portion (3), said body portion and said head portion having identical inner diameters; an optical system (5, 8, 10) including a reflector (5) located within the housing; a halogen incandescent lamp (16) located at an end zone of the body portion (2) facing the head portion (3), the body portion (2) defining a battery chamber (13) therein; a hollow cylindrical tube (17) forming an axially slideable connection element, connecting the head portion (3) and the body portion (2) to provide for axially slideable movement of the head portion with respect to the body portion, the hollow cylindrical tube having an outer diameter fitting closely within the inner diameter of the body portion and the head portion, and forming a slide guide for said axially slideable movement; and wherein the reflector (5) is secured to the head portion (3) and the hollow cylindrical tube (17) has a slide distance long enough to remove the reflector secured to the head portion from a bulb of the halogen incandescent lamp and expose at least the filament of the halogen incandescent lamp (16) to a free space between the body portion (2) and the head portion (3) to provide for 360° light radiation--with respect to a longitudinal axis of the elongated tubular housing--from the halogen incandescent lamp (16).
Claim 14
Dependent Claim
235 words
Combination flashlight-warning light (1) having an elongated tubular housing including a hollow cylindrical body portion (2) and a hollow cylindrical head portion (3), said body portion and said head portion having identical inner diameters; an optical system (5, 8, 10) including a reflector (5) located within the housing; a halogen incandescent lamp (16) located at an end zone of the body portion (2) facing the head portion (3), the body portion (2) defining a battery chamber (13) therein; a hollow cylindrical tube (17) forming an axially slideable connection element, connecting the head portion (3) and the body portion (2) to provide for axially slideable movement of the head portion with respect to the body portion, the hollow cylindrical tube having an outer diameter fitting closely within the inner diameter of the body portion and the head portion, and forming a slide guide for said axially slideable movement; and wherein the reflector (5) is secured to the head portion (3) and the hollow cylindrical tube (17) has a slide distance long enough to remove the reflector secured to the head portion from a bulb of the halogen incandescent lamp and expose at least the filament of the halogen incandescent lamp (16) to a free space between the body portion (2) and the head portion (3) to provide for 360° light radiation--with respect to a longitudinal axis of the elongated tubular housing--from the halogen incandescent lamp (16).
Claim 15
Dependent Claim
21 words
Combination light according to claim 12 , wherein the hollow cylindrical tube (17) is securely connected to the head portion (3).
Claim 16
Dependent Claim
29 words
Combination according to claim 12, wherein said hollow cylindrical tube, at least in the region surrounding the halogen incandescent lamp, is transparent and formed with a light-diffusing surface texture.
Claim 17
Dependent Claim
14 words
Combination according to claim 14, wherein said light-diffusing surface texture comprises ribbing or facetting.
Claim 18
Dependent Claim
99 words
Combination according to claim 14, further including a lamp holder (11,12) securing the halogen incandescent lamp (16) to the body portion (2); and wherein the side of the lamp holder facing the bulb of the halogen incandescent lamp (16), as well as the side of the reflector (6), remote from the halogen incandescent lamp, when the halogen incandescent lamp is received within the reflector, have a reflective surface, to provide for maximum light utilization and transmission in said 360° radius upon sliding said slideable connection means for the slide distance to remove the halogen incandescent lamp from the reflector.
Claim 19
Dependent Claim
121 words
Combination according to claim 14, wherein a lamp holder (11, 12 ) is provided, securing the halogen incandescent lamp (16) to the body portion (2) of the housing; and, wherein the reflector (5) comprises a combination element having a first reflector section (6) formed by an elliptical reflector portion (6) defining a theoretical ellipse, and a second reflector section formed by a part spherical reflector portion (7), the wider opening of which faces the elliptical reflector portion (6) and located downstream--in a direction of the halogen incandescent lamp (16)--adjacent the elliptical reflector portion, said reflector being coupled to the hollow cylindrical tube (7) and movable therewith to change the relative position of the reflector with respect to the halogen incandescent lamp.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |